EP 0560620 B1 19970716 - Maleimide polymers and contact lenses from such polymers
Title (en)
Maleimide polymers and contact lenses from such polymers
Title (de)
Maleimidgruppen-enthaltende Polymere und Kontaktlinse auf Basis dieser Polymeren
Title (fr)
Polymères à groupes maléimide et lentilles de contact fabriquées à partir de ces polymères
Publication
Application
Priority
JP 5366892 A 19920312
Abstract (en)
[origin: EP0560620A1] A maleimide polymer comprises units derived from a maleimide derivative represented by the following general formula (I): <CHEM> where R<1> is a hydrogen atom or a methyl group, and R<2> is an alkyl, alkenyl or aryl group, each of which groups is substituted by at least one organosiloxane group or fluorine atom, or comprises a copolymer of (1) a maleimide derivative represented by the formula (I) but in which R<2> may be hydrogen or any optionally substituted aliphatic hydrocarbon or aryl group with (2) an alkyl or fluoroalkyl methacrylate or an organosiloxy styrene- or organosiloxy-(meth)acrylic acid derivative. The polymer material may be formulated into contact lenses high in oxygen permeability and having good mechanical properties.
IPC 1-7
IPC 8 full level
C08F 22/36 (2006.01); C08F 22/40 (2006.01); C08F 222/40 (2006.01); C08F 230/08 (2006.01); C08F 246/00 (2006.01); G02B 1/04 (2006.01); G02C 7/04 (2006.01)
CPC (source: EP KR US)
C08F 222/402 (2020.02 - KR); C08F 222/408 (2020.02 - KR); C08F 230/08 (2013.01 - EP US); C08F 230/085 (2020.02 - KR); G02B 1/043 (2013.01 - EP KR US)
Citation (examination)
- EP-A- 0 355 624
- EP-A- 0 452 098
- EP-A- 0 463 612
- EP-A- 0 474 036
- WO-A-93/03076
- US-A- 5 019 628
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0560620 A1 19930915; EP 0560620 B1 19970716; CA 2091537 A1 19930913; DE 69312130 D1 19970821; DE 69312130 T2 19971211; JP 3087424 B2 20000911; JP H05257094 A 19931008; KR 930020185 A 19931019; US 5393803 A 19950228
DOCDB simple family (application)
EP 93301884 A 19930312; CA 2091537 A 19930311; DE 69312130 T 19930312; JP 5366892 A 19920312; KR 930003630 A 19930311; US 3060993 A 19930312